<?xml version="1.0"?>
<!DOCTYPE book SYSTEM "../tools/dtd/dblite.dtd"
[

<!ENTITY best_practices           SYSTEM "best_practices.xml">
<!ENTITY directory_versioning     SYSTEM "directory_versioning.xml">
<!ENTITY quick_walkthrough        SYSTEM "quick_walkthrough.xml">
]>

  <book id="svn">
  <title>Subversion: Miscellaneous Documentation</title>

  <!-- External entity refs -->
  &quick_walkthrough; 
  &best_practices;
  &directory_versioning;

  </book>